CVE-2026-7744 Overview
CVE-2026-7744 is a SQL injection vulnerability in CodeAstro Online Classroom 1.0. The flaw resides in the /OnlineClassroom/addnewstudent endpoint, where the fname parameter is passed unsanitized into a backend SQL query. Authenticated remote attackers can manipulate the parameter to inject arbitrary SQL statements. The issue is classified under [CWE-74] (Improper Neutralization of Special Elements in Output Used by a Downstream Component). A public exploit is referenced in the GitHub Issue Discussion and tracked by VulDB Vulnerability #360919.
Critical Impact
Authenticated remote attackers can inject SQL through the fname parameter of the addnewstudent function, potentially exposing or modifying student records in the application database.
Affected Products
- CodeAstro Online Classroom 1.0
- Component: /OnlineClassroom/addnewstudent
- Vulnerable parameter: fname
Discovery Timeline
- 2026-05-04 - CVE-2026-7744 published to NVD
- 2026-05-04 - Last updated in NVD database
Technical Details for CVE-2026-7744
Vulnerability Analysis
The vulnerability is a SQL injection in the student registration workflow of CodeAstro Online Classroom 1.0. When a request is submitted to /OnlineClassroom/addnewstudent, the application concatenates the fname argument directly into a SQL statement. Because the input is not parameterized or escaped, attacker-controlled SQL syntax is executed by the database engine.
Exploitation requires network access and low-privilege authentication, as reflected in the CVSS 4.0 vector. The exploit has been disclosed publicly, lowering the technical barrier for opportunistic attackers. Successful injection can read, modify, or delete records, depending on the privileges of the database user the application uses.
Root Cause
The root cause is improper neutralization of user-supplied input before it reaches the SQL interpreter. The fname form field is treated as trusted data and inserted into a query string rather than bound through a prepared statement. This pattern aligns with [CWE-74] and is a common defect in PHP-based educational projects that build queries through string concatenation.
Attack Vector
An attacker authenticates to the Online Classroom application, then submits a crafted POST request to /OnlineClassroom/addnewstudent with a malicious fname payload. Typical payloads use boolean-based or UNION-based techniques to enumerate database tables and exfiltrate columns such as user credentials, grades, or session identifiers. Because the action is reachable from any networked client, automation through scripts or scanners is straightforward. Detailed reproduction notes are available in the VulDB CTI for #360919.
No verified proof-of-concept code is reproduced here. Refer to the GitHub Issue Discussion for the disclosed payload structure.
Detection Methods for CVE-2026-7744
Indicators of Compromise
- HTTP POST requests to /OnlineClassroom/addnewstudent containing SQL metacharacters such as ', --, UNION, or SLEEP( in the fname field.
- Web server access logs showing repeated addnewstudent submissions from a single source within short time windows.
- Database error messages or stack traces returned to clients after submission of the student form.
Detection Strategies
- Deploy web application firewall signatures that flag SQL keywords and tautologies inside the fname form parameter.
- Enable database query logging and alert on unusually long query strings or queries containing comment delimiters originating from the application service account.
- Correlate authentication events with subsequent addnewstudent traffic to identify low-privilege accounts performing reconnaissance.
Monitoring Recommendations
- Forward web server, application, and database logs to a centralized analytics platform for cross-source correlation.
- Establish a baseline for normal addnewstudent request volume and alert on deviations.
- Monitor outbound traffic from the database host for signs of data exfiltration following suspicious form submissions.
How to Mitigate CVE-2026-7744
Immediate Actions Required
- Restrict access to the Online Classroom application to trusted networks until a fix is available.
- Audit existing student records and database logs for evidence of injection attempts referencing the fname parameter.
- Rotate database credentials used by the application and reduce the database user's privileges to the minimum required.
Patch Information
No official vendor patch has been published for CodeAstro Online Classroom 1.0 at the time of CVE assignment. Monitor the CodeAstro Security Resource and VulDB Submission #807696 for vendor updates. Until a patch is released, apply the workarounds below.
Workarounds
- Modify the addnewstudent handler to use parameterized queries or prepared statements instead of string concatenation.
- Apply server-side input validation that rejects non-alphabetic characters in the fname field.
- Place the application behind a web application firewall configured with SQL injection rule sets, such as the OWASP Core Rule Set.
- Run the database service under an account that lacks privileges to read sensitive tables outside the classroom schema.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
